Gypsum soft slab / sluff release

Avalanche

jon.berlie · Dec 23, 2020 · Spray - KLakes

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Observation photo 1Observation photo 2Observation photo 3

Quick report

Weather
cloudy
Ride Type
steepSlopes, openTrees, denseTrees
Stayed Away
convexSlopes, alpineSlopes
Riding Quality
amazing
Snow Conditions
deepPowder
Avalanche Conditions
avalancheConditionSnow

Snowpack

Depth
100
Obs Type
summary
Site Aspect
N
Site Elevation
1950
Ski Penetration
50
Foot Penetration
80
Cracking Observed
1
Site Elevation Band
btl
Surface Conditions
newSnow
Whumpfing Observed
1
Test Failure Layer Crystal Types
surfaceHoar, crust

Avalanche

Run Length
20
Slab Width
8
Trigger Type
skier
Avalanche Size
1
Slab Thickness
60
Trigger Sub Type
intentional
Start Zone Aspect
N
Trigger Distance
2
Vegetation Cover
sparseTrees
Start Zone Incline
35
Avalanche Character
stormSlab, looseDry
Number Of Avalanches
1
Start Zone Elevation
1950
Weak Layer Burial Date
2020-11-05T07:00:00.000Z
Avalanche Observation
12to24hrsAgo
Weak Layer Crystal Type
surfaceHoar
Start Zone Elevation Band
btl
Avalanche Occurrence Datetime
2020-12-22T15:00:00

Did a ski cut above roll on one of the Westmont chutes. The storm snow fractured about 8 m in width and ran 20 meters until the concave of the slope slowed the travel. Did not run fast.